VB.Net Tutorial/GUI/DateTimePicker — различия между версиями
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Текущая версия на 15:57, 26 мая 2010
DataTimePicker format
<source lang="vbnet">Imports System.Windows.Forms public class DataTimePickerFormat
public Shared Sub Main Application.Run(New Form1) End Sub
End class Public Class Form1
Inherits System.Windows.Forms.Form Public Sub New() MyBase.New() InitializeComponent() End Sub Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub Private components As System.ruponentModel.IContainer Friend WithEvents DateTimePicker1 As System.Windows.Forms.DateTimePicker Friend WithEvents ComboBox1 As System.Windows.Forms.ruboBox Friend WithEvents Label1 As System.Windows.Forms.Label <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.DateTimePicker1 = New System.Windows.Forms.DateTimePicker Me.ruboBox1 = New System.Windows.Forms.ruboBox Me.Label1 = New System.Windows.Forms.Label Me.SuspendLayout() " "DateTimePicker1 " Me.DateTimePicker1.Location = New System.Drawing.Point(40, 24) Me.DateTimePicker1.Name = "DateTimePicker1" Me.DateTimePicker1.Size = New System.Drawing.Size(120, 20) Me.DateTimePicker1.TabIndex = 0 " "ComboBox1 " Me.ruboBox1.Items.AddRange(New Object() {"Long", "Short", "Custom", "Time"}) Me.ruboBox1.Location = New System.Drawing.Point(40, 200) Me.ruboBox1.Name = "ComboBox1" Me.ruboBox1.Size = New System.Drawing.Size(120, 21) Me.ruboBox1.TabIndex = 1 " "Label1 " Me.Label1.Location = New System.Drawing.Point(40, 160) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(80, 24) Me.Label1.TabIndex = 2 Me.Label1.Text = "Format" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(292, 266) Me.Controls.Add(Me.Label1) Me.Controls.Add(Me.ruboBox1) Me.Controls.Add(Me.DateTimePicker1) Me.Name = "Form1" Me.Text = "DateTimePicker" Me.ResumeLayout(False) End Sub Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged If ComboBox1.SelectedIndex < 0 Then Return End If Dim caption As String = ComboBox1.SelectedItem.ToString().Chars(0) Dim format As DateTimePickerFormat Select Case caption Case "S"c format = DateTimePickerFormat.Short Case "T"c format = DateTimePickerFormat.Time Case "C"c format = DateTimePickerFormat.Custom Case Else format = DateTimePickerFormat.Long End Select DateTimePicker1.Format = format End Sub
End Class</source>
DateTimePicker format: LongDate, LongTime, ShortDate, ShortTime
<source lang="vbnet">Option Strict On imports System imports System.Drawing imports System.Windows.Forms public class DTPicker : inherits Form
dim dtp as DateTimePicker public sub New() Size = new Size(400,300) AddHandler me.Load, AddressOf me_Load dtp = new DateTimePicker() dtp.Parent = me dtp.Location = new Point(20,20) dtp.Size = new Size(ClientSize.Width - 40, dtp.PreferredHeight) dtp.Anchor = AnchorStyles.Top or AnchorStyles.Left or AnchorStyles.Right dim fnt as new Font("Times New Roman", 16) dtp.CalendarFont = new Font(fnt, FontStyle.Bold or FontStyle.Italic) dtp.CalendarForeColor = Color.Red dtp.CalendarMonthBackground = Color.Yellow dtp.CalendarTitleBackColor = Color.Lime dtp.CalendarTitleForeColor = Color.Blue dtp.CalendarTrailingForeColor = Color.FromArgb(255,192,192) dtp.CustomFormat = "dddd,MMMM d, yyyy "at" h:mm:ss tt" dtp.Format = DateTimePickerFormat.Custom dtp.DropDownAlign = LeftRightAlignment.Right dtp.ShowUpDown = false " default AddHandler dtp.ValueChanged, AddressOf dtp_ValueChanged end sub public shared sub Main() Application.Run(new DTPicker()) end sub private sub UpdateLabels() Console.WriteLine(dtp.Value.ToString()) Console.WriteLine(dtp.Value.ToLongDateString()) Console.WriteLine(dtp.Value.ToLongTimeString()) Console.WriteLine(dtp.Value.ToShortDateString()) Console.WriteLine(dtp.Value.ToShortTimeString()) end sub private sub me_Load(ByVal sender as object,ByVal e as EventArgs) UpdateLabels() end sub private sub dtp_ValueChanged(ByVal sender as object,ByVal e as EventArgs) UpdateLabels() end sub private sub txtCustomString_TextChanged(ByVal sender as object,ByVal e as EventArgs) UpdateLabels() end sub
end class</source>
Get value from DateTimePicker
<source lang="vbnet">Imports System.Windows.Forms public class UseMonthCalendarAndDateTimePicker
public Shared Sub Main Application.Run(New Form1) End Sub
End class Public Class Form1
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged " ----- Check and display only valid dates. If (IsDate(TextBox1.Text) = True) Then Label1.Text = Date.Parse(TextBox1.Text).ToShortDateString Else Label1.Text = "" End If End Sub Private Sub DateTimePicker1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DateTimePicker1.ValueChanged " ----- Show the selected date. Label2.Text = DateTimePicker1.Value.ToShortDateString End Sub Private Sub MonthCalendar1_DateChanged(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DateRangeEventArgs) Handles MonthCalendar1.DateChanged " ---- Show the slected date. Label3.Text = MonthCalendar1.SelectionStart.ToShortDateString End Sub
End Class
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1
Inherits System.Windows.Forms.Form "Form overrides dispose to clean up the component list. <System.Diagnostics.DebuggerNonUserCode()> _ Protected Overrides Sub Dispose(ByVal disposing As Boolean) If disposing AndAlso components IsNot Nothing Then components.Dispose() End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> _ Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox Me.DateTimePicker1 = New System.Windows.Forms.DateTimePicker Me.MonthCalendar1 = New System.Windows.Forms.MonthCalendar Me.Label1 = New System.Windows.Forms.Label Me.Label2 = New System.Windows.Forms.Label Me.Label3 = New System.Windows.Forms.Label Me.Label4 = New System.Windows.Forms.Label Me.Label5 = New System.Windows.Forms.Label Me.Label6 = New System.Windows.Forms.Label Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Location = New System.Drawing.Point(72, 8) Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(120, 20) Me.TextBox1.TabIndex = 0 Me.TextBox1.Text = "2007-12-07" " "DateTimePicker1 " Me.DateTimePicker1.Location = New System.Drawing.Point(72, 48) Me.DateTimePicker1.Name = "DateTimePicker1" Me.DateTimePicker1.Size = New System.Drawing.Size(200, 20) Me.DateTimePicker1.TabIndex = 1 Me.DateTimePicker1.Value = New Date(2007, 12, 7, 0, 0, 0, 0) " "MonthCalendar1 " Me.MonthCalendar1.Location = New System.Drawing.Point(72, 88) Me.MonthCalendar1.Name = "MonthCalendar1" Me.MonthCalendar1.TabIndex = 2 " "Label1 " Me.Label1.AutoSize = True Me.Label1.Location = New System.Drawing.Point(296, 16) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(39, 13) Me.Label1.TabIndex = 3 Me.Label1.Text = "Label1" " "Label2 " Me.Label2.AutoSize = True Me.Label2.Location = New System.Drawing.Point(296, 48) Me.Label2.Name = "Label2" Me.Label2.Size = New System.Drawing.Size(39, 13) Me.Label2.TabIndex = 4 Me.Label2.Text = "Label2" " "Label3 " Me.Label3.AutoSize = True Me.Label3.Location = New System.Drawing.Point(296, 88) Me.Label3.Name = "Label3" Me.Label3.Size = New System.Drawing.Size(39, 13) Me.Label3.TabIndex = 5 Me.Label3.Text = "Label3" " "Label4 " Me.Label4.AutoSize = True Me.Label4.Location = New System.Drawing.Point(8, 10) Me.Label4.Name = "Label4" Me.Label4.Size = New System.Drawing.Size(57, 13) Me.Label4.TabIndex = 6 Me.Label4.Text = "Plain Text:" " "Label5 " Me.Label5.AutoSize = True Me.Label5.Location = New System.Drawing.Point(8, 50) Me.Label5.Name = "Label5" Me.Label5.Size = New System.Drawing.Size(40, 13) Me.Label5.TabIndex = 7 Me.Label5.Text = "Picker:" " "Label6 " Me.Label6.AutoSize = True Me.Label6.Location = New System.Drawing.Point(8, 88) Me.Label6.Name = "Label6" Me.Label6.Size = New System.Drawing.Size(52, 13) Me.Label6.TabIndex = 8 Me.Label6.Text = "Calendar:" " "Form1 " Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font Me.ClientSize = New System.Drawing.Size(510, 258) Me.Controls.Add(Me.Label6) Me.Controls.Add(Me.Label5) Me.Controls.Add(Me.Label4) Me.Controls.Add(Me.Label3) Me.Controls.Add(Me.Label2) Me.Controls.Add(Me.Label1) Me.Controls.Add(Me.MonthCalendar1) Me.Controls.Add(Me.DateTimePicker1) Me.Controls.Add(Me.TextBox1) Me.Name = "Form1" Me.Text = "Using Controls to Enter or Select a Date" Me.ResumeLayout(False) Me.PerformLayout() End Sub Friend WithEvents TextBox1 As System.Windows.Forms.TextBox Friend WithEvents DateTimePicker1 As System.Windows.Forms.DateTimePicker Friend WithEvents MonthCalendar1 As System.Windows.Forms.MonthCalendar Friend WithEvents Label1 As System.Windows.Forms.Label Friend WithEvents Label2 As System.Windows.Forms.Label Friend WithEvents Label3 As System.Windows.Forms.Label Friend WithEvents Label4 As System.Windows.Forms.Label Friend WithEvents Label5 As System.Windows.Forms.Label Friend WithEvents Label6 As System.Windows.Forms.Label
End Class</source>